Discharging a battery. Accumulators. Student activity Play

Discovery of elementary particles Whiteboard exercise Play

Discovery of elementary particles Student activity Play

Dissolving ionic compounds in water Student activity Play

Distinguish between a physical and a chemical change Whiteboard exercise Play

Distinguish between a physical and a chemical changes Whiteboard exercise Play

Do catalysts affect the reaction equilibrium? Animation Play

Do households affect ecosystems? Student activity Play

Does a chemical compound have a constant composition? Whiteboard exercise Play

Does a chemical compound have a constant composition? Student activity Play

Drawing circuits Student activity Play

Drugs and health Whiteboard presentation Play

Dynamic state of chemical equilibrium Whiteboard exercise Play

Dynamic state of chemical equilibrium Student activity Play

Early attempts to classify chemical elements Whiteboard exercise Play

Early attempts to classify chemical elements Student activity Play

Early attempts to classify chemical elements Whiteboard exercise Play

Early attempts to classify chemical elements (1) Student activity Play

Early attempts to classify chemical elements (2) Student activity Play

Ecological succession Whiteboard presentation Play

Ecological succession Class activity Play

Economics of the extraction of metals Student activity Play

Economics of the extraction of metals Whiteboard exercise Play

Ecosystem Whiteboard presentation Play

Ecosystem Class activity Play